1  /* { dg-do compile } */
       2  /* { dg-options "-O" } */
       3  
       4  struct S1 {
       5    int f0;
       6    int f1;
       7  };
       8  
       9  int fn1 ();
      10  void fn2 (struct S1);
      11  
      12  void
      13  fn3 () {
      14    struct S1 a = { 1, 0 };
      15    if (fn1 ())
      16      fn2 (a);
      17    for (; a.f1;) {
      18    }
      19  }